Machine for making stucco-boards.



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R. LINKLETTER SL G. W. MUTTART.

MACHINE FOR MAKING STUCCO BOARDS. APPLICATION FILED JULY l0, 1915.

Patented July 11, 1916.

s SHEETS-sniff 1.

R. LINKLETTER & G. W. IVIUTTART.

MACHINE FOR MAKING STUCCO BOARDS.

APPLICATION FILED Jun/10,1915.

l l QU@ l Patented July 11, 1916.

3 SHEETS-SHEET 2.

IIVI/ENTORJ ATTORNEY R. LINKLETTER SL G. W. IVIUTTART.

MACHINE FOR MAKING STUCCO BOARDS.

APPLICATION FILED .IULY'I0, I9I5- 'm II In I.

WITNESS/5S.'

AWMF-'lf @FFlFW RBEBT LINKIJETTER AND GEORGE W. MU'ITART, OF JERSEY CITY, NEW JERSEY, ASSIGNORS- OF ONE-THIRD T0 SAID LINKLETTER, ONE-THIRD 'IO SAID MUTTART, AND ONE-THIRD TG ALDER C. MU'ITART, 0F NEW YORK, N. Y.

MACHINE FDE MAKING.' STUCCO-BOARDS.

Specification of Letters Patent.

Application led July 10, 1915. Serial No. 39,070.

T o all whom t may concern Be it known that we, ROBERT LINsmarrital and GEORGE W. MUTTART, citizens lof the United States, both residing at Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and u seful Improvements in Machines for Maklng Stucco-Boards, of which the following is a full, clear, and exact description.

Our invention relates to machinery for making boards wholly or partly from plastic material, and suitable for use in building and in many kinds of. construction work.

More particularly stated, our invention comprehends a number ofimprovements in a machine for continuously turning out fiat boards made of plaster of Paris and covered with paper, and provided with anchor holes of arbitrary form for promoting adherence of plastic material to the boards.

Reference is made to the accompanying drawing forming a part of the specification, and in which like letters indicate like parts'.

yFigure 1 is a side elevation of themachine complete. Fig. 2 is a longitudinal vertical section through the same. 'Fig 3 is a section. through the machine and is taken upon the line 3-3 of Fig. 2, looking Y"in the direction of' the arrow. Fig. 4 is a section showing in detail a part of the feed mechanism shown at the left of Figs. 1 and 2. Fig. 5 is a fragmentary vertical section through one of the traveling dies and the perforated roller coacting therewith for perforating and applying the top sheet of paper to the partially formed stucco board. Fig. 6 is a detail view, partly in elevation and partly in section, showing a part of the delivery mechanism. Fig. 7 is a plan view of one of the traveling dies in its inverted position. Fig. 8 is a section y showing a pair of rollers used for continuously perforating a band of paper to bel used in making the boards.

A massive board 9 is mounted upon legs 10, 11. 12, 13 and secured to these legs and extending lengthwise of the board are beams 14, 15, 16. The beams 15, 16 are arranged in pairs and adapted to serve as a supporting track as hereinafter described. Various frame pieces 17, 18, 19, 20, 21, 22 and 23 serve the purpose of braces and thus form a part of the framework. r1`wo rounded guide plates 24 are mounted oppositely to each other and supported by the framework. Each guide plate 24 is cut away at and fitted against the adjacent end of the beam 15. A number of rollers 26 are revolubly supported by the beams 15, and disposed adjacent the guide plates 24. A hopper 27 is supported by the framework, and is adapted to hold a quantityv of plastic material 28 and to discharge 'this material in the form of a layer 28a.

Mounted upon the legs 10 are a pair of brackets 2,9, which support a shaft 30 carrylng a roll of paper 31 so that the paper may be'fed 0H continuously in the form of a strip 32. An operating roller 33 is mounted -upon a shaft 34 which extends across the framework and is journaled thereupon. The

equidistant and extending the full length of the roller. In the particular instance here shown there are three of these knives. They are so disposed that the lwidth of each knife extends radially outward. r1`he roller is provided with holes 36 of conical form, the axis of each hole extending radially.

The board 9 is provided with an opening 37. lExtending across this opening is a shaft 38, which rests in a pair of bearing brackets one of which appears at 39. The shaft 38 supports a roll of paper 40, which is reeled od in the form of a continuous paper strip 41. A roller 42 is supported upon a shaft 43, the latter being mounted in bearings one of which appears at 44. |Ihe roller 42 is provided with holes 45 of conical form, the laxis of each hole extending radially toward the shaft 43. Another roller 46 is mounted upon a shaft 47 and is provided with conical points 48 which are adapted to extend into the holes 45, as may beunderstood from Fig. 8. The shaft 47 rests in bearings, one of which is shown at 49. A guide roller 50 is mounted upon a shaft 51, which is -journaled upon and supported by the beams 15. Another roller 52 is mounted upon a shaft 53 and carries knives 54 similar to the knives 35 above described in connection with the roller 33.r The paper strip 41 engages the under side of the roller 42, thence extends upwardly between this roller and the roller 46, thence downwardly and partially around Patented .raw ri, raie.

the roller 50, and thence underneath the roller 52, so as, to be readily cut by the knives 54. f

Journaledupon the framework and ex-` tending crosswise thereof is a shaft 55, carrying a .pulley 57 and sprocket spokes 58, the latter having notches 59 at the outer ends thereof. Two guides 60,l each having the form of an endless strip, are mounted upon opposite sides of the framework. Located between these guides are a number of flat plates 61, made of metal. The plates 61 are disposed end to end in the form of an endless chain, and are connected together by shafts 64. Each shaft 64 extends through av pair of eyes 62 carried by one plate and through another pair of eyes 63 carried by the next successive plate. Mounted upon the ends of each shaft 64 are a pair of supporting wheels 65, so disposed and arranged as to readily engage and rest upon the beams 16 and 17, which thus constitute tracks upon which the wheels 65 roll continuously. A number of conical-ended pins 66 are mounted in a bed 61a, which rests upon the plate 61 in such manner as to brace and hold the pins firmly in position. A lifting plate 67 perforated to allow the pins 66 to extend through it, rests loosely upon the bed 61a and maybe moved slightly in relation thereto. The bed 61a carries a bounding strip 68 projecting slightly from it, and having a general rectangular form, so that-when the parts are in the position indicated in Fig. 5 the lifting plate 67, which has a rectangular form, is bounded at its four edges by the bounding strip 68. As the plates 61 pass in success1on beneath the roller 33 and the strip of paper 32 is fed continuously, the paper is cut by the knives 35 in measured lengths each approximating the length of a plate 61. The conical portions of the pins 66 are pushed through the strip of paper, so as to form protuberances 66a, integral therewith. These protuberances are somewhat ragged, but are roughly of frusto-conical formi They serve as anchorages for causing the paper to adhere to the plastic material. A cam plate 69 is located adjacent each plate 61, and is provided with an inclinedV portion 70. Four posts 71, 72 are connected rigidly tothe cam plate 69 and also'to the lifting plate 61, these posts extending loosely through holes in the plate 61 and bed 61.v The plate 69 is thus movable relatively to the plate 61, and is provided with a pair of bosses 73 for lodging against the plate 61 and thus preventing more movement from taking place at this end of the plate, than is allowed by the inclined portion at the opposite end thereof.

The plastic material 28, which is soft plaster of Paris, is constantly fed downwardly from the hopper 28, and spreads'out in a layer 28, so that a small charge of it is de- Y plate 67 has a boundaries 'of posited upon each successive portion of the paper strip 32;,that is to say, each lifting portion of the paper strip deposited upon it, perforated, and then cut off by one of the knives 35, and the charge of plastic material is spread out upon the leaf of paper thus formed. The protuberances 66, while still fitting more or less tightly around the conical ended pins 66, are completely packed around with the charge of plastic' material. Therefore, the conical ends of the pins 66 each extend through a composite mass consisting partly of paper and partly of plastic material, the recess occupied by the conical end of the pin thus receiving the form of a truevcone frustum. Thus the paper adheres to the plastic material byvirtue of mutual adhesion and also because of anchorages extending from the paper into the plastic mass. The bounding strip 68 serves as a barrier to limit the spread of the plastic material and determine the the charge thereof. As each charge passes under the roller 52 the lstrip of paper 41 is brought down upon the top face of the charge and cut ofi' by one of the knives 54 into lengths each -coinciding with the-length of the charge. Before the strip of pa er 41 is thus brought into contact with the p astio material it is perforated by passing between the rollers 42,- 46 as may be understood from Fig. 8. The paper is thus provided with protuberances substantially like those above described, and designated inFig. 5 as 66E, and is held to the charge of plasticv material in substantially the same manner. The protuberances when forced down upon the pins are swaged by pressure thereof so as to acquire substantially frustoconical form, or in other words formed to fit the pins, and thus become anchorages, which are held in position by the plaster of aris, as may be understood from Fig. 6. As the plastic material sets very quickly, and as the top and bottom sheets of paper protect the separate charges, the stucco boards thus formed become strong enough to bear handling by the time they reach the rear end of the machine. As the endless chain travels along, each cam plate 69 in Succession strikes the rollers 26 and is raised slightly, as indicated at the right of Fig. 6, so that the posts 71, 72 now raise the lifting plate 67. The stucco board, comprising a layer 71 of plaster of Paris with two leaves 32a, 32", of paper secured firmly to it, is thus lifted upwardly and disengaged from the pins 66, as indicated in Fig. 6. The finished stucco board is now entirely free, and may be removed by hand or otherwise, as desired.

s soon as each cam plate 69 lis disengaged from the rollers, as shown at the right of Fig. 2,-the adjacent plate 61 engages the rounded edges of the guide plates 24, and follow the same around until the wheels 65 are brought down and rest upon the beams 16, which as above stated serve as a track. The plate 61 is now inverted however, and the lifting plate 67 hangs below it, being supported by theposts 71, 72. rIhe plates 61 and parts carried thereby now rest upon the wheels 65, the weight of the entire lower half of the chain thus resting upon the lower track, consisting of the beams 16.

The operation of our ldevice is as follows The parts being assembled and arranged as above described; the hopper 27 is filled with plaster of Paris or other plastic material capable of setting quickly, and power 'is applied to4 the pulley 57. The shaft 55 being thus rotated, the sprocket spokes 58 engage the shafts 64 in succession, as indicated in Figs. 3 and 4, and the various operations above described now take place. |The paper rolls 31 and 40 are turned by the tension upon the respective strips of paper 32. and 41, and the continuous travel of the strip 41 also turns the. pulleys 46 and 42. The strip 41, being perforated as above described by the action of the rollers 46 and 42, is maintained in proper registry with 'the roller 52 by action ofthe pins 66, which extend through the perforations already made in the paper, and extend into the conical holes in the cylinder 52. An operator stands at the rear end of the ,machine (at the right according to Fig. 2) and removes the finished stucco boards as rapidly as they arrive.

rllhe length of the machine, and the speed with which it is driven, are commensurate with the time interval required for enabling the stucco boards to become sufficiently strong to permit them to be removed safely andrapidly from the machine.

ev do not limit ourselves to the precise mechanism shown, as variations may be made therefrom without departing from the spirit` of our invention, the scope ofthe invention being commensurate with our clnns.

We claim :e a

1. In an apparatus of the character described the combination, with a number of traveling members connected together in the form of an endless chain and means for propelling said chain, of mechanism for placing upon said traveling members charges of plastic material capable of s'etting, means for supplying paper into engagement with said charges of plastic material in order to cause said paper to adhere thereto, perforating mechanism .for punch- 'ing holes through said paper and forming protuberances thereupon, and means for forcing said protuberances into said charges ofv plastic materialin order to firmly anchor said paper to said charges.

2. In an apparatus of the character described the combination, with number of traveling members connected together in the form of an endless chain and means for propelling said chain, of projecting pins carried by each traveling member, means for depositing a charge of plastic material upon each traveling member so as to partially cover the pins thereof with plastic material capable of setting, and means for bringing into engagement with said charge of plastic material, under pressure, a sheet of paper adapted to adhere thereto and provided with portions for engaging said pins and of being swaged thereby to form anchorages within said charge of plastic material.

3. In an apparatus of the character described the combination, with a supporting member for receiving a charge of plastic material capable of setting, of a forming member mounted upon said supporting member for the purpose lof extending through said charge in order to provide the same with a perforation, means for supplying a sheet of paper capable of adhering to said charge and provided with a protuberance. for engaging said forming member, and means for applying pressure to said paper in order to force said protuberance against said forming member and thus form said protuberance into an anchorage for holding said sheet of paper upon said charge of plastic material.

4. In a machine of the character described the combination,'with a number of traveling members connected together in the form of an endless cha-in, of pins carried by eacli traveling member; a plate carried by each traveling member and provided with holes through which said pins may extend, a. roller provided with holes into which said pins charge of plastic material upon each piece of lpaper thus cut off.

5. In a machine of the character described the combination, with a number of traveling members connected together in the form of a continuous chain, of pins carried by said traveling members, a roller provided with holes into which said pins may extend, means for delivering a strip of paper into engagement with said pins and said roller in order to enable said pins to punch holes through said paper and form protiiberances thereupon bounding said holes and adapted to serve as anchorages, and means for discharging plastic material upon said strip of paper so as to envelop the protuberances and thus anchor the papei' to the plastic materrial.

e said plate,

6. In a device of the character described the combination of aplate, pins carried by means for pressing a strip of paper upon said pins in order to cause said pins to perforate said strip of paper and form thereupon protuberances adapted to serve as anchorages, and means for depositing upon 'the strip of paper, While in engagement with the ins, a charge of plastic material having su cient viscosity to spread out over said strip of paper, and together with said protuberances to completely cover the pins.

material, and cutting mechanism, controllav ble by movements of said traveling member,

for severing a portion of said strip of paper engaging said charge of plastic material. ROBERT LINKLETTER. GEORGE W. MUTTART. 

